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Re: Potential transformer

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

Probably 2-3x rated kVA for a few min. with cool downs in between. I have a 3 kVA PT I ran at 7kVA for 2-3 min at a time in a jacob's ladder and it just got warm on the outside (probably hotter in the middle) and it still works after 7 years. It'd be less for 15 min.(almost considered continuous duty, 1x). If the ballast is the problem (I use an old neon bombarder core converted into an saturable reactor) switch to a roll of 10 awg magnet wire. The heat radiates faster without pvc insulation on it.

Mike


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, October 23, 2005 8:49 PM
Subject: Potential transformer


Original poster: "Ken May" <kens.coil@xxxxxxxxxxx>

What is a good output for a potential transformer and not hurt it?
Running 450 feet of 10awg for current limit and I'm geting 400ma to 500ma..
Also with 450 feet 12awg getting 240ma but the wire is getting too hot in
15min...
What else is there ????